31231356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{200201}}^1$

素因数の和:200221

約数の個数: 24

約数和(自身を含む): 78479184

約数和(自身を除く): 47247828

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 200201, 400402, 600603, 800804, 1201206, 2402412, 2602613, 5205226, 7807839, 10410452, 15615678, 31231356]

約数ペア:

[(1, 31231356), (2, 15615678), (3, 10410452), (4, 7807839), (6, 5205226), (12, 2602613), (13, 2402412), (26, 1201206), (39, 800804), (52, 600603), (78, 400402), (156, 200201)]